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This study was undertaken to investigate the relationship between date of birth and growth performance of calves born to seasonally-bred range cows. Late born calves exhibited an apparent superiority in preweaning growth over that of their early-born counterparts. This was attributed to a positiv...


Rege, J.E.O.Moyo, Siboniso[Effect of birth date on growth performance of calves of seasonally-bred range cattle]Effect of birth date on growth performance of calves of seasonally-bred range cattle

Crossbreeding data involving Ghana Shorthorn, Sokoto Gudali and their Jersey F1S and backcrosses collected over a 16-year period were analysed to estimate additive and heterotic effects for milk production, reproduction and calf growth traits. Sokoto Gudali was significantly better than Ghana Sho...


Rege, J.E.O.Aboagye, G.S.Akah, S.Ahunu, B.K.[Crossbreeding Jersey with Ghana Shorthorn and Sokoto Gudali cattle in a tropical environment: Additive and heterotic effects for milk production, reproduction and calf growth traits]Crossbreeding Jersey with Ghana Shorthorn and Sokoto Gudali cattle in a tropical environment: Additive and heterotic effects for milk production, reproduction and calf growth traits

Calving date (CD) records of 68896 polled Hereford dams of 120 682 calves were coded within herd-year-season with date 1 being the date the first calf was born. Factors affecting CD and its relationship with production traits were investigated. Early calving was found to be associated with high p...


Rege, J.E.O.Famula, T.R.[Factors affecting calving date and its relationship with production traits of Hereford dams]Factors affecting calving date and its relationship with production traits of Hereford dams

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